clang/lib/Tooling/ExpandResponseFilesCompilationDatabase.cpp

   1 //===- ExpandResponseFileCompilationDataBase.cpp --------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "clang/Tooling/CompilationDatabase.h"
  10 #include "clang/Tooling/Tooling.h"
  11 #include "llvm/ADT/StringRef.h"
  12 #include "llvm/Support/CommandLine.h"
  13 #include "llvm/Support/ConvertUTF.h"
  14 #include "llvm/Support/ErrorOr.h"
  15 #include "llvm/Support/MemoryBuffer.h"
  16 #include "llvm/Support/Path.h"
  17 #include "llvm/Support/StringSaver.h"
  18 #include "llvm/TargetParser/Host.h"
  19 #include "llvm/TargetParser/Triple.h"
  20
  21 namespace clang {
  22 namespace tooling {
  23 namespace {
  24
  25 class ExpandResponseFilesDatabase : public CompilationDatabase {
  26 public:
  27   ExpandResponseFilesDatabase(
  28       std::unique_ptr<CompilationDatabase> Base,
  29       llvm::cl::TokenizerCallback Tokenizer,
  30       llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS)
  31       : Base(std::move(Base)), Tokenizer(Tokenizer), FS(std::move(FS)) {
  32     assert(this->Base != nullptr);
  33     assert(this->Tokenizer != nullptr);
  34     assert(this->FS != nullptr);
  35   }
  36
  37   std::vector<std::string> getAllFiles() const override {
  38     return Base->getAllFiles();
  39   }
  40
  41   std::vector<CompileCommand>
  42   getCompileCommands(StringRef FilePath) const override {
  43     return expand(Base->getCompileCommands(FilePath));
  44   }
  45
  46   std::vector<CompileCommand> getAllCompileCommands() const override {
  47     return expand(Base->getAllCompileCommands());
  48   }
  49
  50 private:
  51   std::vector<CompileCommand> expand(std::vector<CompileCommand> Cmds) const {
  52     for (auto &Cmd : Cmds)
  53       tooling::addExpandedResponseFiles(Cmd.CommandLine, Cmd.Directory,
  54                                         Tokenizer, *FS);
  55     return Cmds;
  56   }
  57
  58 private:
  59   std::unique_ptr<CompilationDatabase> Base;
  60   llvm::cl::TokenizerCallback Tokenizer;
  61   llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS;
  62 };
  63
  64 } // namespace
  65
  66 std::unique_ptr<CompilationDatabase>
  67 expandResponseFiles(std::unique_ptr<CompilationDatabase> Base,
  68                     llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS) {
  69   auto Tokenizer = llvm::Triple(llvm::sys::getProcessTriple()).isOSWindows()
  70                        ? llvm::cl::TokenizeWindowsCommandLine
  71                        : llvm::cl::TokenizeGNUCommandLine;
  72   return std::make_unique<ExpandResponseFilesDatabase>(
  73       std::move(Base), Tokenizer, std::move(FS));
  74 }
  75
  76 } // namespace tooling
  77 } // namespace clang